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<p>[QUOTE=&quot;chrisild, post: 445583, member: 39&quot;]Steel basically consists of iron, so it it not wrong to use the term iron, especially if one wants to emphasize that in one specific case iron replaced copper. It also seems to be common in numismatic literature to simply use &quot;Fe&quot; (iron) for steel coins.</p><p><br /></p><p>As for that exchange rate, well, the article may originally have been written a few months ago: The USD-EUR rate for example was at a record high of about 1.60 three months ago, now it&#039;s €1.30 or so per $. Guess that these days you need a high quality crystal ball to predict or even explain such developments. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie11" alt=":rolleyes:" unselectable="on" unselectable="on" /></p><p><br /></p><p>But all in all this is an interesting article, about where the metals for coins came and come from, and how metal isotopes can be used to find out about this. Thanks HazardJoe for posting this!</p><p><br /></p><p>Christian[/QUOTE]</p><p><br /></p>

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